wow...they look gorgeous and healthy :)
but i have kind of a different issue here...
as you might be aware, curry leaf plants spread their roots under the ground and produces new sprouts (it's clones).
that's why, sometimes you can notice many small curry leaf plants around a healthy big one...
so, no matter how much u try, your curry leaf plant keeps on producing them...
i, too, have to remove them in October (end of the monsoon here in India) every year to keep the parent plant healthy...
hope this will help you in future when your plant will be pretty big :)